baber/WOPTO huggingface dataset:
Patent CA-1307378-C (CA)
Inventor: BATAILLE CLAUDE
IPC: B29C61/06
Filed: 1987-07-09
Granted: 1992-09-15
Abstract: PRÉCIS La presente invention propose un manchon thermorétractable destiné à être appliqué sur un objet à recouvrir, délimité par une surface intérieure et une surface extérieure, et comprenant des moyens pour contrôler son chauffage uniforme. Le manchon thermorétractable de cette invention est caracterisé en ce qu'il comprend sur sa surface intérieure au moins deux régions distinctes entre lesquelles existe un gradient de contrainte. L'invention concerne aussi un procédé de fabrication d'un tel manchon thermorétractable, consistant à réaliser un manchon en un matériou ou composé auquel on peut conférer la caractéristique thermorétractable, dont la surface intérieure ne presente ancun gradient de contrainte, chauffer le manchon, expanser radialement le manchon chauffé, et refroidir le manchon pour le maintenir à l'état expansé, caractérisé en ce qu'il consiste en outre à déformer de façon non régulière la surface intérieure du manchon alors que celui-ci est chauffé pour produire ledit gradient de contrainte.
Patent CA-1299694-C (CA)
Title: Electrical receptacle
Inventor: HAHN MARLYN E
IPC: H01R13/193
Filed: 1987-09-15
Granted: 1992-04-28
Abstract: TITLE                ELECTRICAL RECEPTACLE                 ABSTRACT        An electrical receptacle having a spring contact contained therein.  The spring is formed with nonflexing portion which provides a stiff section that acts as a positive stop to prevent overstressing the spring and permanently deforming it.   9.2
Patent CA-1295978-C (CA)
Title: Farebox security device
Inventor: GIEBELHAUSEN CHARLES W
IPC: G07B15/00
Filed: 1987-11-16
Granted: 1992-02-18
Abstract: FAREBOX SECURITY DEVICE            ABSTRACT OF THE DISCLOSURE      A farebox has two separate chambers with a communicating passageway between the chambers, a fare receiving  and detecting module being located in one of the chambers  for  receiving  deposited  fares,   detecting  the deposited  value,   and   transporting the fare to the communicating passageway, and  a  removable  cashbox  for storing  deposited fares being located in the other  chamber and having a deposit  opening  communicating  with   the passageway for  receiving  deposited fares  from  the  fare receiving  module.   Both the fare receiving module and  the cashbox are removably locked in their respective  chambers, and  a  device for unlocking the fare  receiving  module  is associated  with a security shutter which is movable between a position closing and locking the communicating  passageway and  a  position  in which the communicating  passageway  is unblocked. Unlocking of the fare receiving module automatically moves the security shutter into a position blocking the communicating passageway.     [P388APA.K07]
Patent CA-1330827-C (CA)
Title: Production and manipulation of high charge density
Inventor: SHOULDERS KENNETH R
IPC: H01J11/00
Filed: 1988-01-18
Granted: 1994-07-19
Abstract: Abstract of the Disclosure Disclosed are high electrical charge density entitles, generated in electrical discharge production.  Apparatus for isolating the high charge density entities, selecting them and  manipulating  them  by  various  guide  techniques  are disclosed.  Utilizing such apparatus, the paths followed by the  entities  may  be  switched,  or selectively varied  in length, for example, whereby the entities may be extensively manipulated.    Additional  devices  are  disclosed  for  the manipulation and exploitation of these entities, including their use with a camera and also in an oscilloscope.
Patent CA-1322749-C (CA)
Inventor: UENO RYUZO
IPC: A61K31/557
Filed: 1988-01-27
Granted: 1993-10-05
Abstract: Abstract The present invention provides novel prostaglandins of the D series, that is 13,14-dihydro-15-keto-PGDs of the formula            (I) wherein (X) is (A)       ,            (B)        ,  , (C)                   (D)    R1 is hydrogen, physiologically acceptable salt Thor, physiologically acceptable protective group or C1-4 alkyl;          R2 is hydrogen or methyl;          R3 is hydroxyl, methyl or hydroxymethyl;          R4 and R5 may be the same or different and represent hydrogen, methyl, hydroxyl or halogen;         R5 is C1-9 alkyl which may be branched or contain a double bond or C1-9 alkyl containing an ether substituent wherein carbons at the 2 - 3 position may have a double bond, except when R1, R2, R4 and R5 are hydrogen, R3 is hydroxyl, R6 is n-butyl, carbons at 2 - 3 positions are singly bonded, and (X) is A, C, or D.
Patent CA-1299253-C (CA)
Title: High-frequency heating apparatus
Inventor: TAKANO TERUHISA
IPC: H05B6/68
Filed: 1988-02-09
Granted: 1992-04-21
Abstract: Abstract:    High frequency heating apparatus has a more precise and simpler construction through a digital controlling operation of a momentary power-off detecting function protect semiconductor switching elements from overload on starting.  The apparatus uses an inverter circuit as a boost power supply for the high frequency oscillator. Precise measurement of the power-off detection and the operational stop time can be achieved so that the semiconductor switching elements can be protected.  Also, isolation between portions for controlling the operation switch and the inverter controlling circuit connected to the commercial power supply is retained, resulting in extremely high safety.  Furthermore, as cut-off of the major power supply circuit and the opening and closing detection of the door can be effected by one door switch only, the cost is reduced and the operation is superior. In addition, the opening and closing means of the major power supply circuit is provided in the system controlling portion to improve safety.
Patent CA-1285991-C (CA)
Title: Input switching in electronic watthour meter
Inventor: JOCHUM THOMAS A
IPC: G01R21/06
Filed: 1988-03-17
Granted: 1991-07-09
Abstract: INPUT SWITCHING IN ELECTRONIC WATTHOUR METER                 ABSTRACT OF THE DISCLOSURE     An electronic metering circuit includes a current transformer having active feedback for maintaining core flux near zero.  In one embodiment of the invention, DC offset-voltage compensation in an operational amplifier providing the active-feedback signal is accomplished using an integrator having a long time cons ant compared to the time constant of periodic signals.  A further embodiment of the invention integrates the functions of current sensing, DC offset-voltage compensation, and part of the switching function required in the electronic metering circuit.
Patent CA-1288420-C (CA)
Title: Controlling the motion of a fluid jet
Inventor: LUXTON RUSSELL E
IPC: F23D14/62
Filed: 1988-04-13
Granted: 1991-09-03
Abstract: ABSTRACT          A fluid mixing device has a wall structure defining a chamber having a fluid inlet and a fluid outlet disposed generally opposite the inlet. The chamber is larger in cross-section than the inlet at least for a portion of the space between the inlet and outlet. The device also includes flow separation means to cause a flow of a first fluid wholly oc-cupying said inlet to separate from said wall structure up-stream of the outlet. The distance between the flow separa-tion means and the outlet is sufficiently long in relation to the width of the chamber for the separated flow to reattach itself asymmetrically to the chamber wall structure upstream of the outlet and to exit the chamber through the outlet asymmetrically, whereby a reverse flow of the first fluid at the reattachment and/or a flow of a second fluid induced from the exterior of the chamber through the outlet swirls in the chamber between said flow separation and the reattachment and thereby induces precession of the separated/reattached flow, which precession enhances mixing of the flow with the second fluid to the exterior of the chamber. A method of mixing and a fluid flow control device are also disclosed.
Patent CA-1326467-C (CA)
Inventor: IWATA KOUICHI
IPC: H01L39/24
Filed: 1988-04-22
Granted: 1994-01-25
Abstract: Abstract of the Disclosure A process for producing a superconducting article having a layer of compound oxide of quasi-perovskite type oxide crystal structure by electrodeposition technique. The precess is characterized by dispersing a material powder in a liquid containing a carrier, driving ionized material particles towards a substrate by applying a direct current between a substrate and a counter electrode, and then sintering a thin layer of powders deposited on the substrate to convert the deposited powders to superconducting compound oxide.
Patent CA-1289196-C (CA)
Title: Fmx stereophonic broadcaster receiver
Inventor: ISHIKAWA TSUTOMU
IPC: H04B1/16
Filed: 1988-05-18
Granted: 1991-09-17
Abstract: ABSTRACT OF THE DISCLOSURE An improved  FMX stereophonic  broadcast  receiver provided  with  countermeasures  against  transient  noises, which includes a level detection circuit for detecting level of a detected stereo difference signal, and a level control circuit  for  controlling  level  of  an  expanded  stereo difference signal according to an output signal of the level detection circuit.  By the above arrangement of the present invention,  since  it  is  so  arranged  to cause  the  level control circuit to function when the degree of modulation becomes large  so as to control the  level of  the  stereo difference signal to be low, a level difference is produced between the stereo  sum signal and the  stereo difference signal for deterioration  of the  stereo separation degree upon matrixing at a matrix circuit for reduction of noises accordingly.
Patent CA-1307805-C (CA)
Title: Aquatic dumbbell
Inventor: SOLLOWAY DANIEL S
IPC: A63B69/00
Filed: 1988-07-19
Granted: 1992-09-22
Abstract: ABSTRACT OF THE DISCLOSURE     Aquatic exercise devices, such as in the form of an aquatic dumbbell, are provided for interchangeable and comfortable use by men, women and children alike.  The aquatic exercise devices permit a large range of movement and increased resisive forces, torque and torsion.  The aquatic exercies devices serve as fluid resistors to water flow as the devices are moved through the water.  The aquatic dumbbell can have an array of axial fins and outer diverging transverse fins to provide enhanced strength building and hydrodynamic resistance.
Patent CA-1305815-C (CA)
Title: Silicone surfactants
Inventor: ZOTTO ANTHONY ARTHUR
IPC: C09K23/54
Filed: 1988-08-04
Granted: 1992-07-28
Abstract: PATENTS                IMPROVED SILICONE SURFACTANTS                Abstract of the Disclosure Certain  polysiloxane  surface  active  agents  containing radial organic polyether groups provide for improved stability of  silicone  emulsions,   particularly   antiperspirant   stick compositions.
Patent CA-1321069-C (CA)
Title: Architectural glass bending system
Inventor: MCMASTER HAROLD A
IPC: C03B/
Filed: 1988-08-05
Granted: 1993-08-10
Abstract: GLASS BENDING AND TEMPERING APPARATUS        ABSTRACT     A glass bending and tempering apparatus is disclosed as including a pair of opposed bending platens for receiving a heated glass sheet to be bent therebetween.  At least one of the bending platens is deformable and includes an actuator for deforming the platens from a planar shape to a bent shape to bend the heated glass sheet.  Said one platen includes quench openings that move with said platen during the deformation of the platen and subsequently supply quenching gas to temper the bent glass sheet.
Patent CA-1296713-C (CA)
Title: Rotary processor apparatus and method for extensive and dispersive mixing
Inventor: TADMOR ZEHEV
IPC: B01F5/00
Filed: 1988-09-01
Granted: 1992-03-03
Abstract: ABSTRACT     A rotary processor for high-shear processing of plastic or polymeric materials comprises a rotor having end discs and at least one mixing disc therebetween, the rotor closely surrounded by a housing to defined annular processing chambers flanking each mixing disc, with a high-shear-mixing transfer gap defined between the mixing disc and the housing.  Channel blocks are deployed at circumferentially spaced apart positions in adjacent chambers to cause transfer of material through the transfer gaps, with dispersive mixing occurring in the transfer gaps.  Some embodiments have plural channel blocks in the chambers, evenly spaced apart.  The channel blocks extend generally into and to the bottom of a chamber, and have two working surfaces divergent from a central region of the chamber and convergent toward the disc walls defining the chamber.  The working surfaces and disc walls defined two high-shear-mixing recycle gaps through which a portion of the material passes and is mixed.  The channel block configuration is also used in a single chamber rotary processor.
Patent CA-1320436-C (CA)
Title: Wellhead structure and method of assembling same
Inventor: SZYMCZAK EDWARD J
IPC: E21B33/00
Filed: 1988-11-08
Granted: 1993-07-20
Abstract: Abstract of the Disclosure The  improved  wellhead  structure  of  the  present invention  includes  a  casing  or tubing  string which is sealed to the housing without the aid of elastomeric seals and an internal bushing to assist in providing the tight gripping and sealing engagement between the string and the housing.    The  structure  provides  a  substantial  inner diameter which is unrestricted unless landing shoulder is included  in the structure.   Also,  the internal bushing used with the cold forging of the string into the housing recess  improves  the  gripping  and  sealing  engagement therebetween.   In one form the bushing includes a series of external projections which alternate with the gripping and sealing projections within the housing recess and in another  form  includes  a  resilient  annulus  between  the interior  of  the  bushing  and the  string  to ensure  the uniform application of pressure against the  interior of the string.   In still another form an internal landing shoulder  is cold  forged  into tight engagement with the interior of the housing which allows full bore operations to  be  carried  through  the  housing  until the  landing shoulder is to be installed.  Also provided is a wellhead structure with a tieback structure in which the upper end of the casing is cold forged into the interior of a hanger while the casing is supported on slips.
Patent CA-1315879-C (CA)
Title: System and method for accessing tracks for optical disc apparatus
Inventor: WACHI SHIGEAKI
IPC: G11B21/08
Filed: 1988-11-18
Granted: 1993-04-06
Abstract: ABSTRACT OF THE DISCLOSURE           A system and method for accessing tracks for an optical disc apparatus are disclosed in which when a light spot is jumped toward a target track, an acceleration pulse is applies across a fine tracking actuator to accelerate the fine tracking actuator for a predetermined period of time, a relative speed of the light spot to the tracks of the optical disc is detected though a detection of a period of a traverse signal outputted due to a movement of the fine tracking actuator, and a control signal corresponding to the relative speed is used to control the movement speed of the fine tracking actuator.  Therefore, before the end of a track jump, a constant relative speed can be achieved such that a smooth tracking servo can be carried out. Consequently, an access time to access the target track can be shortened.
Patent CA-1307265-C (CA)
Inventor: HOFFMAN WILLIAM F
IPC: A61K31/22
Filed: 1989-01-05
Granted: 1992-09-08
Abstract: TITLE OF THE INVENTION          NOVEL HMG-CoA REDUCTASE INHIBITORS            ABSTRACT OF THE DISCLOSURE         Novel 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase inhibitors are useful as antihypercholesterolemic agents and are represented by the following general structural formulae (I) and (II):                      (I)               (II)
Patent CA-1318098-C (CA)
Title: Process for the injection moulding of multi-layered articles
Inventor: KING DAVID C
IPC: B29C45/26
Filed: 1989-01-12
Granted: 1993-05-25
Abstract: ABSTRACT OF THE DISCLOSURE        An injection moulding process for the manufacture of multi-layered articles, especially articles having barrier properties, is disclosed. The process comprises clamping a thermoplastic film over the cavity of a mould of an injection moulding process, the film being capable of being stretched. The film is then stretched within the mould by inserting the core of the mould, preferably using a core in which a central part enters the mould and partially stretches the film prior to the remainder of the core entering the mould.  The mould is then closed, excess film is trimmed off and polymer is injected into the mould cavity.  The resultant article is a multi-layered injection moulded article which, depending on the characteristics of the film and injected polymer, may have barrier properties to oxygen, liquids or the like that are superior to articles moulded from only the polymer.  The process is particularly useful in the moulding of containers having a depth;width ratio of at least 0.5.
Patent CA-1333709-C (CA)
Inventor: KELSTON HENRY J
IPC: B65D6/00
Filed: 1989-03-01
Granted: 1994-12-27
Abstract: The present invention teaches a squeeze resistant juice-type carton holder which is capable of resealing the contents thereof, and which will withstand normal finger pressures of a user which might squeeze fluid from the carton.  An internally ribbed housing structure provides the stiffness required, and a straw holder permits storing of the carton straw for repeated use where desired.  A housing comprises two halves which are hinged by means of a living hinge at one seam, and which may be locked by means of locking tabs.  Other features will become apparent from the following specification.
Patent CA-1337999-C (CA)
Title: Ignition resistant modified carbonate polymer composition
Inventor: OGOE SAMUEL ABOTAR
IPC: C08K5/50
Filed: 1989-03-30
Granted: 1996-01-23
Abstract: This invention relates to an ignition resistant carbonate polymer composition comprising a mixture of one or more carbonate polymers and a high elastic memory polytetrafluoroethylene having a heat shrinkage equal to or greater than 15 percent with or without one or more organo phosphorous compounds.  This composition exhibits surprisingly high resistance to combustion and/or ignition and is suitably employed in most applications in which polycarbonates have been previously utilized, such as, for example, pigmented and/or colored carbonate polymers useful as automobile parts, such as, for example, air filters and fan housings.
Patent CA-1317183-C (CA)
Title: Liquid cleansing composition containing non-polar solvent
Inventor: DENIS JEAN-PIERRE
IPC: C11D1/34
Filed: 1989-03-30
Granted: 1993-05-04
Abstract: ABSTRACT OF THE DISCLOSURE         A liquid cleansing composition, for use as a hard surface cleaner, comprises (A)  a base liquid composition comprising (a)  a base composition comprising:                (1)  an anionic surfactant, (2)  a nonionic surfactant, (3)  a non-polar grease-removal solvent, (4)  a water-soluble detergent builder salt, (5)  optionally, a perfume, and (6)  optionally, a dye; and (b)  water; and (B)  an abrasive.          The liquid cleansing composition is in the form of a liquid crystalline material of the smectic type. A method of making the liquid cleansing composition comprises sequential addition of the various ingredients.
Patent CA-1337140-C (CA)
Inventor: GUPTA BALARAM
IPC: C08F212/14
Filed: 1989-05-01
Granted: 1995-09-26
Abstract: The invention relates to a process for preparing copolymers of p-vinylphenol and allyl esters of ethylenically unsaturated acids which comprises slurrying copolymers of p-acetoxystyrene and allyl esters of ethylenically, unsaturated acids in water or an alcohol followed by hydrolyzing the acetoxy groups with an acid or a base with substantially no saponification of the allyl ester groups.  The resulting copolymers can be used as vinylphenol copolymers without interfering reactions with carboxylic acid groups since the allyl ester groups are not hydrolyzed.  Also, the allyl groups which remain in the copolymers can be used in subsequent reactions, e.g., radiation curing.
Patent CA-1337591-C (CA)
Title: Therapeutic composition comprising oestrogen and antioestrogen
Inventor: DUKES MICHAEL
IPC: A61K31/00
Filed: 1989-06-05
Granted: 1995-11-21
Abstract: The invention relates to a therapeutic product comprising an oestrogen and a pure antioestrogen for simultaneous, sequential or separate use in selective oestrogen therapy of perimenopausal or postmenopausal conditions; to a process for the manufacture of said product and to a pharmaceutical composition containing said product. The invention also relates to a pharmaceutical composition comprising an oestrogen and a pure antioestrogen and to a process for the manufacture of said composition.
Patent CA-1306076-C (CA)
Title: Detection of nuclear radiation
Inventor: NAM TOM L
IPC: G01T1/11
Filed: 1989-06-28
Granted: 1992-08-04
Abstract: A B S T R A C T            A method of detecting, counting or otherwise measuring nuclear radiation includes the steps of exposing a diamond containing single  substitutional  paramagnetic  nitrogen  to  the  nuclear radiation to cause electrons or holes to be trapped at lattice imperfections within the diamond crystal structure, heating the diamond to cause it to luminesce and utilising the luminescence as a means for the detection,  counting or measurement of the nuclear radiation.  The method is characterised by subjecting the diamond to a high dose of neutron or electron irradiation prior to exposing it to the nuclear radiation to be detected. This, it has been found, improves both the sensitivity of the diamond as a thermoluminescent material and linearity of the thermoluminescent response to nuclear radiation dose.
Patent CA-1305775-C (CA)
Title: Diode laser with improved means for electrically modulating the emitted light beam intensity including turn-on and turn-off and electrically controlling the position of the emitted laser beam spot
Inventor: LAWRENCE DAVID JOSEPH
IPC: H01S5/042
Filed: 1989-07-18
Granted: 1992-07-28
Abstract: ABSTRACT A family of semiconductor diode lasers is made available whose emitted laser light beam intensity can be electrically  modulated  with  low  voltage  low  current modulating control bias signals.  By appropriate design of the diode laser devices in accordance with the invention and provision of means for adjusting the relative values of the applied modulating control bias signals, the improved diode lasers can be switched on and off electrically in addition to modulation of the emitted output laser light beam intensity.   Further,  the physical position of the emitted laser light beam spot along the laser facet readily can be moved by the same electrically operable control means so as to provide modulation, turn-on and turn-off and small lateral movement as well as scanning of the laser light beam in a single heterostructural diode laser device.
Patent CA-1316955-C (CA)
Title: Spacer tube matrix
Inventor: KRANIS DANIEL SR
IPC: B62D21/00
Filed: 1989-08-04
Granted: 1993-04-27
Abstract: SIDERAIL TUBE MATRIX               ABSTRACT OF THE DISCLOSURE    A vehicle frame of box beam construction containing within the box beam a spacer tube matrix or web which positions spacer tubes in alignment with aligned apertures within the sidewall of the box beam. The spacer tubes allow substantial clamping force to be applied by bolts passing thru the aligned apertures to attach vehicle parts to the frame.